210212133111 has 12 divisors (see below), whose sum is σ = 311846227992. Its totient is φ = 136353815856.

The previous prime is 210212133017. The next prime is 210212133127. The reversal of 210212133111 is 111331212012.

210212133111 is a `hidden beast` number, since 210 + 2 + 121 + 331 + 1 + 1 = 666.

It is not a de Polignac number, because 210212133111 - 2¹⁹ = 210211608823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210212133311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315633501 + ... + 315634166.

It is an arithmetic number, because the mean of its divisors is an integer number (25987185666).

Almost surely, 2^210212133111 is an apocalyptic number.

210212133111 is a deficient number, since it is larger than the sum of its proper divisors (101634094881).

210212133111 is a wasteful number, since it uses less digits than its factorization.

210212133111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631267710 (or 631267707 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 210212133111 its reverse (111331212012), we get a palindrome (321543345123).

The spelling of 210212133111 in words is "two hundred ten billion, two hundred twelve million, one hundred thirty-three thousand, one hundred eleven".